Question about Westinghouse TX-47F430S 47 in. LCD TV

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My screen goes blue after about 30 minutes but sound is good. unplug tv, wait 10 seconds and it comes back on normal. 30 minutes later same thing.

When the tv has been unplugged for a period of time, say 3 hours, it will play normal for about an hour. Then when it switches between a tv program to a commercial and back the screen will go blue, with a slight pink tint on the right side and shortly later it will be all dark blue with no pink tint. Unplugging the tv for 10 seconds will bring it back to normal, but after about 10 to 15 minutes, when it switches to a commercial, it will go blue with a pink tint, then all dark blue.

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Posted on Jan 02, 2017

  • 608 Answers

SOURCE: TV Turns on, picture and

I had a similar problem with my 42 in Philips LCD HDTV. I may have the solution to your problem.


Here was MY problem. My Power Supply Board had several bad capacitors. I opened my TV (warranty was expired of course) and found four bulged capacitors on the PSB. Many major electronics companies Philips/Magnavox, Sony, Panasonic, and others were sold capacitors that failed in 2-5 years instead of 10-20. The capacitors fail prematurely due to a lack of preservatives. Unfortunately, they were installed in all sorts of devices and cause a wide range of failure problems.


Here are some options for you to consider.


1. Have it fixed by a professional $$$$$$$??????? (Is it under warranty?)

Remember, TVs CONTAIN HIGH VOLTAGE AND CAN KILL YOU! Do this at your own risk.

2. Open your TV and find PSB. (The board that the power cord plugs into) Check for faulty caps. If you find some (bulged or leaking) bad caps replace the entire board. They can be found online. I would definitely shop around though.


3. Remove and then replace individual faulty caps. This takes some soldering skill.

Caps are inexpensive and if you can take care of it yourself it will save you hundreds.


This may be your problem. If you determine that it might be.

I have a Tip/How TO tutorial on this site that may also help. It will, at the very least, give you a general idea of the process. It gives step by step instructions for replacing caps on PSB #715t2432-2. If this is your board you are in luck. Here is the Link: Fixing the Philips Turns/shuts off on its own problem.


Hope this helps.

If you have any questions for me, please comment on this page. I will be happy to assist you to the best of my ability. Thanks for using Fixya.


Kaufman605

Posted on Dec 22, 2010

  • 302 Answers

SOURCE: the tv will run pefect

Your signal board is defective. It is the board with the antenna connection and all the audio video connections. If you open the TV form the back you can get a part number from the board and order it on line. You can find parts at www.interliquidparts.com Be carefull tv's have high voltage make sure it is unplugged for a few hours before you take off the back cover.

Posted on Jun 03, 2011

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My Westy 47 TV has a very strange power-up problem! First, I found that the power supply was bad, I couldn't repair it, so I bought a replacement from ShopJimmy. The replacement seems to be working fine, and sometimes the TV works fine. The little green LED near the bottom edge of the controller board lights up when you connect the AC power, as it should. There is also a small green LED near the upper edge of the controller board that apparently lights only up when the controller is working properly. I've replaced the 470 mFd, 16 V. 'Lytic on the controller board, as everyone says to do. I still observed about 0.8 Vp-p of digital signals on the 5 Volt buss with the replacement capacitor these signals looked kind of like a 300 kHz clock and some other misc. digital stuff, so I added a couple of 0.1 mFd disc ceramics directly across it on the bottom side of the board. That reduced these signals to about 0.4 Vp-p, but the TV still won't turn on. The orange pilot light on the front is lit, but neither the buttons nor the remote will turn it on. The only way I can get the TV to turn on is to do the following: 1. disconnect the two power cables going to the two lamp inverter boards; 2. plug the AC power cable in. The 2nd green LED on the upper portion of the controller board now lights up when AC power is applied. 3. plug in both power cables to the two inverter boards while the power is on. The TV now works fine - all of the lamps light up, good picture, blue LED on the front panel, the remote works, etc. However, if I turn the TV off, and try to turn it back on, the small green LED on the upper controller board goes off, and the set won't come on! I've tried holding the on/off button down for over 10 seconds I read that this might re-boot the controller to no avail. The only way to get it back on is to go thru the 3 above steps again. I've read that there appear to be several versions of the firmware, and I wonder if this might be a firmware problem. If so, how/where can I get the proper firmware to install? Any suggestions? HELP! Please If someone would like to call me, please do at ************. Thanks, Gary W3DTN

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